CVE intelligence

CVE-2026-66149

Vulnerability intelligence

Published Aug 11, 2026Sources checked Oct 7, 2026

7.8HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-66149 and is rated High severity with a CVSS score of 7.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

SonicWall PSIRT Advisories guidance

Vendor revision: Aug 11, 2026

Install the applicable fixed SonicWall release for your product and branch.

Vendor-listed releases

Fixed Product(s): Fixed Versions
Email Security (ES Appliance 5000, 5050, 7000, 7050, 9000, VMWare and Hyper-V): 10.0.36 and higher versions.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.3%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-66149?

Improper Control of Generation of Code ('Code Injection') Vulnerability in the SonicWall Email Security appliance allows an authenticated attacker with access to the SonicWall Email Security restricted CLI can inject arbitrary OS commands that execute as root via netmask.

Source: NVD